package com.pop.Demo07;

import java.util.Scanner;

//static
public class Student {
    private static int age;//静态变量
    private double scare;//非静态变量

    public void run(){

    }

    public  static void go(){

    }
    public static void main(String[] args) {
        Student s1 = new Student();
        System.out.println(Student.age);
        System.out.println(s1.age);
        System.out.println(s1.scare);

        go();
      new Student().run();
    }
}
